Camera optical lens

ABSTRACT

A camera optical lens is provided. The camera optical lens includes, from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens. The camera optical lens satisfies following conditions: 1.80≤f1/f≤3.20; and 1.50≤d11/d12≤8.00, where f1 denotes a focal length of the first lens, d11 denotes an on-axis thickness of the sixth lens, and d12 denotes an on-axis distance from an image side surface of the sixth lens to an object side surface of the seventh lens. The camera optical lens according to the present disclosure meets design requirements for large aperture, wide angle and ultra-thinness while achieving good optical performance.

TECHNICAL FIELD

The present disclosure relates to the field of optical lenses, and inparticular, to a camera optical lens applicable to portable terminaldevices such as smart phones or digital cameras, and camera devices suchas monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens has been increased. However, a photosensitivedevice of general camera lens is either a Charge Coupled Device (CCD) ora Complementary Metal-Oxide Semiconductor Sensor (CMOS Sensor). With theprogress of the semiconductor manufacturing technology, the pixel sizeof the photosensitive device becomes smaller. In addition, the currentelectronic products have been developed to have better functions andlighter and smaller dimensions. Therefore, a miniature camera lens withgood imaging quality has already become a mainstream in the currentmarket.

In order to obtain better imaging quality, a traditional lens equippedin a mobile phone camera usually adopts a three-piece or four-piecestructure, or even five-piece or six-piece structure. However, with thedevelopment of technologies and the increase of the various demands ofusers, a nine-piece structure gradually appears in lens designs as thepixel area of the photosensitive devices is constantly reduced and therequirement of the system on the imaging quality is constantly improved.Although the common nine-piece lens already has better opticalperformance, its settings on refractive power, lens spacing, and lensshape are still unreasonable to some extent. As a result, the lensstructure cannot meet design requirements for ultra-thin, wide-anglelenses having a big aperture while achieving a good optical performance.

SUMMARY

In view of the above problems, the present disclosure provides a cameraoptical lens, which meets design requirements for large aperture,ultra-thinness and wide angle while achieving good optical performance.

In an embodiment, the present disclosure provides a camera optical lens.The camera optical lens includes, from an object side to an image side,a first lens, a second lens having a positive refractive power, a thirdlens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, aneighth lens, and a ninth lens. The camera optical lens satisfiesfollowing conditions: 1.80≤f1/f≤3.20; and 1.50≤d11/d12≤8.00, where fdenotes a focal length of the camera optical lens, f1 denotes a focallength of the first lens, d11 denotes an on-axis thickness of the sixthlens, and d12 denotes an on-axis distance from an image side surface ofthe sixth lens to an object side surface of the seventh lens.

As an improvement, the camera optical lens further satisfies a conditionof −2.50≤R15/R16≤−1.00, where R15 denotes a central curvature radius ofan object side surface of the eighth lens, and R16 denotes a centralcurvature radius of an image side surface of the eighth lens.

As an improvement, the camera optical lens further satisfies followingconditions: −19.83≤(R1+R2)/(R1−R2)≤−2.78; and 0.04≤d1/TTL≤0.13, where R1denotes a central curvature radius of an object side surface of thefirst lens, R2 denotes a central curvature radius of an image sidesurface of the first lens, d1 denotes an on-axis thickness of the firstlens, and TTL denotes a total optical length from the object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: 0.67≤f2/f≤4.19; −5.92≤(R3+R4)/(R3−R4)≤−1.09; and0.03≤d3/TTL≤0.09, where f2 denotes a focal length of the second lens, R3denotes a central curvature radius of an object side surface of thesecond lens, R4 denotes a central curvature radius of an image sidesurface of the second lens, d3 denotes an on-axis thickness of thesecond lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −8.70≤f3/f≤−1.78; 2.56≤(R5+R6)/(R5−R6)≤12.83; and0.02≤d5/TTL≤0.05, f3 denotes a focal length of the third lens, R5denotes a central curvature radius of an object side surface of thethird lens, R6 denotes a central curvature radius of an image sidesurface of the third lens, d5 denotes an on-axis thickness of the thirdlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −60.55≤f4/f≤1383.86; 3.24≤(R7+R8)/(R7−R8)≤748.88; and0.03≤d7/TTL≤0.08, where f4 denotes a focal length of the fourth lens, R7denotes a central curvature radius of an object side surface of thefourth lens, R8 denotes a central curvature radius of an image sidesurface of the fourth lens, d7 denotes an on-axis thickness of thefourth lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: 0.91≤f5/f≤2.84; 0.27≤(R9+R10)/(R9−R10)≤1.21; and0.02≤d9/TTL≤0.08, where f5 denotes a focal length of the fifth lens, R9denotes a central curvature radius of an object side surface of thefifth lens, R10 denotes a central curvature radius of an image sidesurface of the fifth lens, d9 denotes an on-axis thickness of the fifthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −5.40≤f6/f≤−1.54; −6.25≤(R11+R12)/(R11−R12)≤−1.51; and0.02≤d11/TTL≤0.08, where f6 denotes a focal length of the sixth lens,R11 denotes a central curvature radius of an object side surface of thesixth lens, R12 denotes a central curvature radius of the image sidesurface of the sixth lens, and TTL denotes a total optical length froman object side surface of the first lens to an image plane of the cameraoptical lens along an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −14.35≤f7/f≤−2.56; −9.39≤(R13+R14)/(R13−R14)≤−1.52; and0.02≤d13/TTL≤0.07, where f7 denotes a focal length of the seventh lens,R13 denotes a central curvature radius of the object side surface of theseventh lens, R14 denotes a central curvature radius of an image sidesurface of the seventh lens, d13 denotes an on-axis thickness of theseventh lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: 0.48≤f8/f≤1.51; −2.20≤(R15+R16)/(R15−R16)≤−0.71; and0.04≤d15/TTL≤0. 12, where f8 denotes a focal length of the eighth lens,R15 denotes a central curvature radius of an object side surface of theeighth lens, R16 denotes a central curvature radius of an image sidesurface of the eighth lens, d15 denotes an on-axis thickness of theeighth lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −1.48≤f9/f≤−0.46; 0.07≤(R17+R18)/(R17−R18)≤0.62; and0.04≤d17/TTL≤0.12, where f9 denotes a focal length of the ninth lens,R17 denotes a central curvature radius of an object side surface of theninth lens, R18 denotes a central curvature radius of an image sidesurface of the ninth lens, d17 denotes an on-axis thickness of the ninthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.

The present disclosure has the following beneficial effects. The cameraoptical lens according to the present disclosure has excellent opticalperformance while achieving the characteristics of large aperture, wideangle and ultra-thinness, particularly applicable to camera lensassembly of mobile phones and WEB camera lenses composed of CCD, CMOS,and other camera elements for high pixels.

BRIEF DESCRIPTION OF DRAWINGS

In order to clearly illustrate technical solutions in embodiments of thepresent disclosure, the accompanying drawings used in the embodimentsare briefly introduced as follows. It is apparent that the drawingsdescribed below are merely part of the embodiments of the presentdisclosure. Other drawings can also be acquired by those of ordinaryskill in the art without involving inventive steps. In the drawings,

FIG. 1 is a schematic structural diagram of a camera optical lensaccording to Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of field curvature and distortion of thecamera optical lens shown in FIG. 1;

FIG. 5 is a schematic structural diagram of a camera optical lensaccording to Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of field curvature and distortion of thecamera optical lens shown in FIG. 5;

FIG. 9 is a schematic structural diagram of a camera optical lensaccording to Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of longitudinal aberration of the cameraoptical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of field curvature and distortion of thecamera optical lens shown in FIG. 9.

DESCRIPTION OF EMBODIMENTS

Embodiments of the present disclosure will hereinafter be described indetail with reference to the accompanying drawings so as to make thepurpose, technical solutions, and advantages of the present disclosuremore apparent. However, those of skilled in the art can understand thatmany technical details described hereby in each embodiment of thepresent disclosure is only to provide a better comprehension of thepresent disclosure. Even without these technical details and variouschanges and modifications based on the following embodiments, thetechnical solutions of the present disclosure can also be implemented.

Embodiment 1

Referring to the drawings, the present disclosure provides a cameraoptical lens 10. FIG. 1 illustrates the camera optical lens 10 accordingto Embodiment 1 of the present disclosure. The camera optical lens 10includes nine lenses. Specifically, the camera optical lens 10successively includes, from an object side to an image side, an apertureS1, a first lens L1, a second lens L2, a third lens L3, a fourth lensL4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lensL8, and a ninth lens L9. An optical element such as an optical filter GFmay be provided between the ninth lens L9 and an image plane S1.

In this embodiment, the first lens L1 has a positive refractive power,the second lens L2 has a positive refractive power, the third lens L3has a negative refractive power, the fourth lens L4 has a negativerefractive power, the fifth lens L5 has a positive refractive power, thesixth lens L6 has a negative refractive power, the seventh lens L7 has anegative refractive power, the eighth lens L8 has a positive refractivepower, and the ninth lens L9 has a negative refractive power. It shouldbe appreciated that in other embodiments, the third lens L3, the fifthlens L5, the sixth lens L6, the seventh lens L7, the eighth lens L8, andthe ninth lens L9 may also have other refractive power.

In this embodiment, the first lens L1 is made of a plastic material, thesecond lens L2 is made of a plastic material, the third lens L3 is madeof a plastic material, the fourth lens L4 is made of a plastic material,the fifth lens L5 is made of a plastic material, the sixth lens L6 ismade of a plastic material, the seventh lens L7 is made of a plasticmaterial, the eighth lens L8 is made of a plastic material, and theninth lens L9 is made of a plastic material. In other embodiments, eachof the lenses may also be made of other material.

In this embodiment, a focal length of the camera optical lens 10 isdefined as f, and a focal length of the first lens L1 is defined as f1.The camera optical leans 10 satisfies a condition of 1.80≤f1/f≤3.20,which specifies a ratio of the focal length f1 of the first lens to thefocal length f of the camera optical lens 10. This condition can correctaberration of the system and improve imaging quality.

An on-axis thickness of the sixth lens L6 is defined as d11, and anon-axis distance from an image side surface of the sixth lens L6 to anobject side surface of the seventh lens L7 is defined as d12. The cameraoptical leans 10 satisfies a condition of 1.50≤d11/d12≤8.00, whichspecifies a ratio of the on-axis thickness d11 of the sixth lens L6 tothe on-axis distance d12 from the image side surface of the sixth lensL6 to the object side surface of the seventh lens L7. This condition cancorrect field curvature of the system and improve imaging quality.

A central curvature radius of an object side surface of the eighth lensL8 is defined as R15, and a central curvature radius of an image sidesurface of the eighth lens L8 is defined as R16. The camera opticalleans 10 satisfies a condition of −2.50≤R15/R16≤−1.00, which specifies aratio of the central curvature radius R15 of the object side surface ofthe eighth lens L8 to the central curvature radius R16 of the image sidesurface of the eighth lens L8. This condition can alleviate thedeflection of light passing through the lens, thereby effectivelyreducing the aberration. As an example, the camera optical leans 10satisfies a condition of −2.45≤R15/R16≤−1.17.

In this embodiment, an object side surface of the first lens L1 is aconvex surface at a paraxial position, and an image side surface of thefirst lens L1 is a concave surface at the paraxial position.

A central curvature radius of the object side surface of the first lensL1 is defined as R1, and a central curvature radius of the image sidesurface of the first lens L1 is defined as R2. The camera optical leans10 satisfies a condition of −19.83≤(R1+R2)/(R1−R2)≤−2.78. This conditioncan reasonably control a shape of the first lens L1, such that the firstlens L1 can effectively correct spherical aberration of the system. Asan example, the camera optical leans 10 satisfies a condition of−12.40≤(R1+R2)/(R1−R2)≤−3.47.

An on-axis thickness of the first lens L1 is defined as d1, and a totaloptical length of the camera optical lens 10 is defined as TTL. Thecamera optical lens 10 satisfies a condition of 0.04≤d1/TTL≤0.13. Thiscondition can facilitate achieving ultra-thin lenses. As an example, thecamera optical leans 10 satisfies a condition of 0.06≤d1/TTL≤0.10.

In this embodiment, an object side surface of the second lens L2 is aconvex surface at the paraxial position, and an image side surface ofthe second lens L2 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the second lens L2 is defined as f2. The camera opticalleans 10 satisfies a condition of 0.67≤f2/f≤4.19. This condition canfacilitate aberration correction of the optical system by controlling apositive refractive power of the second lens L2 within a reasonablerange. As an example, the camera optical lens 10 satisfies a conditionof 1.08≤f2/f≤3.35.

A central curvature radius of the object side surface of the second lensL2 is defined as R3, and a central curvature radius of the image sidesurface of the second lens L2 is defined as R4. The camera optical leans10 satisfies a condition of −5.92≤(R3+R4)/(R3−R4)≤−1.09, which specifiesa shape of the second lens L2. This condition can facilitate correctingthe on-axis aberration with development of ultra-thin and wide-anglelenses. As an example, the camera optical lens 10 satisfies a conditionof −3.70≤(R3+R4)/(R3−R4)≤−1.36.

An on-axis thickness of the second lens L2 is defined as d3, and a totaloptical length of the camera optical lens 10 is defined as TTL. Thecamera optical lens 10 satisfies a condition of 0.03≤d3/TTL≤0.09. Thiscondition can achieve ultra-thin lenses. As an example, the cameraoptical lens 10 satisfies a condition of 0.04≤d3/TTL≤0.07.

In this embodiment, an object side surface of the third lens L3 is aconvex surface at the paraxial position, and the image side surface ofthe third lens L3 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the third lens L3 is defined as f3. The camera opticallens 10 satisfies a condition of −8.70≤f3/f≤−1.78. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticallens 10 satisfies a condition of −5.44≤f3/f≤−2.22.

A central curvature radius of the object side surface of the third lensL3 is defined as R5, and a central curvature radius of the image sidesurface of the third lens L3 is defined as R6. The camera optical lens10 satisfies a condition of 2.56≤(R5+R6)/(R5−R6)≤12.83, which specifiesa shape of the third lens L3 and thus facilitates molding of the thirdlens L3. This condition can alleviate the deflection of light passingthrough the lens, thereby effectively reducing the aberration. As anexample, the camera optical lens 10 satisfies a condition of4.10≤(R5+R6)/(R5−R6)≤10.26.

The on-axis thickness of the third lens L3 is defined as d5, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical lens 10 satisfies a condition of 0.02≤d5/TTL≤0.05.This condition can achieve ultra-thin lenses. As an example, the cameraoptical lens 10 satisfies a condition of 0.03≤d5/TTL≤0.04.

In this embodiment, an object side surface of the fourth lens L4 is aconvex surface at the paraxial position, and an image side surface ofthe fourth lens L4 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the fourth lens L4 is defined as f4. The camera opticallens 10 satisfies a condition of −60.55≤f4/f≤1383.86. The systemtherefore achieves a better imaging quality and a lower sensitivity byreasonably distributing the refractive power. As an example, the cameraoptical lens 10 satisfies a condition of −37.84≤f4/f≤1107.09.

A central curvature radius of the object side surface of the fourth lensL4 is defined as R7, and a central curvature radius of the image sidesurface of the fourth lens L4 is defined as R8. The camera optical lens10 satisfies a condition of 3.24≤(R7+R8)/(R7−R8)≤748.88, which specifiesa shape of the fourth lens L4. This condition can facilitate aberrationcorrection of an off-axis angle of view with development of ultra-thinand wide-angle lenses.

As an example, the camera optical lens 10 satisfies a condition of5.19≤(R7+R8)/(R7−R8)≤599.10.

An on-axis thickness of the fourth lens L4 is defined as d7, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical lens 10 satisfies a condition of 0.03≤d7/TTL≤0.08.This condition can achieve ultra-thin lenses. As an example, the cameraoptical lens 10 satisfies a condition of 0.04≤d7/TTL≤0.07.

In this embodiment, an object side surface of the fifth lens L5 is aconvex surface at the paraxial position, and an image side surfacethereof is a convex surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the fifth lens L5 is defined as f5. The camera opticallens 10 satisfies a condition of 0.91≤f5/f≤2.84. The fifth lens L5 islimited to effectively make a light angle of the camera optical lens 10gentle and reduce the tolerance sensitivity. As an example, the cameraoptical lens 10 satisfies a condition of 1.46≤f5/f≤2.27.

A central curvature radius of the object side surface of the fifth lensL5 is defined as R9, and a central curvature radius of the image sidesurface of the fifth lens L5 is defined as R10. The camera optical lens10 satisfies a condition of 0.27≤(R9+R10)/(R9−R10)≤1.21, which specifiesa shape of the fifth lens L5. This condition can facilitate aberrationcorrection of an off-axis angle of view with development of ultra-thinand wide-angle lenses. As an example, the camera optical lens 10satisfies a condition of 0.43≤(R9+R10)/(R9−R10)≤0.97.

An on-axis thickness of the fifth lens L5 is defined as d9, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical lens 10 satisfies a condition of 0.02≤d9/TTL≤0.08.This condition can achieve ultra-thin lenses. As an example, the cameraoptical lens 10 satisfies a condition of 0.04≤d9/TTL≤0.06.

In this embodiment, an object side surface of the sixth lens L6 is aconcave surface at the paraxial position, and the image side surface ofthe sixth lens L6 is a convex surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the sixth lens L6 is defined as f6. The camera opticallens 10 satisfies a condition of −5.40≤f6/f≤−1.54. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticallens 10 satisfies a condition of −3.38≤f6/f≤−1.92.

A central curvature radius of the object side surface of the sixth lensL6 is defined as R11, and a central curvature radius of the image sidesurface of the sixth lens L6 is defined as R12. The camera optical lens10 satisfies a condition of −6.25≤(R11+R12)/(R11−R12)≤−1.51, whichspecifies a shape of the sixth lens L6. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera optical lens10 satisfies a condition of −3.91≤(R11+R12)/(R11−R12)≤−1.89.

An on-axis thickness of the sixth lens L6 is defined as d11, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical lens 10 satisfies a condition of 0.02≤d11/TTL≤0.08.This condition can achieve ultra-thin lenses. As an example, the cameraoptical lens 10 satisfies a condition of 0.04≤d11/TTL≤0.06.

In this embodiment, the object side surface of the seventh lens L7 is aconcave surface at the paraxial position, and an image side surfacethereof is a convex surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the seventh lens L7 is defined as P. The camera opticallens 10 satisfies a condition of −14.35≤f7/f≤−2.56. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticallens 10 satisfies a condition of −8.97≤f7/f≤−3.20.

A central curvature radius of the object side surface of the seventhlens L7 is defined as R13, and a central curvature radius of the imageside surface of the seventh lens L7 is defined as R14. The cameraoptical lens 10 satisfies a condition of−9.39≤(R13+R14)/(R13−R14)≤−1.52, which specifies a shape of the seventhlens L7. This condition can facilitate aberration correction of anoff-axis angle of view with development of ultra-thin and wide-anglelenses. As an example, the camera optical lens 10 satisfies a conditionof −5.87≤(R13+R14)/(R13−R14)≤−1.90.

An on-axis thickness of the seventh lens L7 is defined as d13, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical lens 10 satisfies a condition of 0.02≤d13/TTL≤0.07.This condition can achieve ultra-thin lenses. As an example, the cameraoptical lens 10 satisfies a condition of 0.04≤d13/TTL≤0.06.

In this embodiment, the object side surface of the eighth lens L8 is aconvex surface at the paraxial position, and the image side surfacethereof is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the eighth lens L8 is defined as f8. The camera opticallens 10 satisfies a condition of 0.48≤f8/f≤1.51. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticallens 10 satisfies a condition of 0.77≤f8/f≤1.21.

A central curvature radius of the object side surface of the eighth lensL8 is defined as R15, and a central curvature radius of the image sidesurface of the eighth lens L8 is defined as R16. The camera optical lens10 satisfies a condition of −2.20≤(R15+R16)/(R15−R16)≤−0.71, whichspecifies a shape of the eighth lens. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera optical lens10 satisfies a condition of −1.38≤(R15+R16)/(R15−R16)≤−0.89.

An on-axis thickness of the eighth lens L8 is defined as d15, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical lens 10 satisfies a condition of 0.04≤d15/TTL≤0.12.This condition can achieve ultra-thin lenses. As an example, the cameraoptical lens 10 satisfies a condition of 0.06≤d15/TTL≤0.09.

In this embodiment, an object side surface of the ninth lens L9 is aconcave surface at the paraxial position, and an image side surfacethereof is a concave surface at the paraxial position. It should beappreciated that in other embodiments, types of the object side surfacesand the image side surfaces of the first lens L1, the second lens L2,the third lens L3, the fourth lens L4, the fifth lens L5, the sixth lensL6, the seventh lens L7, the eighth lens L8, and the ninth lens L9 mayalso be configured to be other concave and convex distribution.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the ninth lens L9 is defined as f9. The camera opticallens 10 satisfies a condition of −1.48≤f9/f≤−0.46. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticallens 10 satisfies a condition of −0.93≤f9/f≤−0.57.

A central curvature radius of the object side surface of the ninth lensL9 is defined as R17, and a central curvature radius of the image sidesurface of the ninth lens L9 is defined as R18. The camera optical lens10 satisfies a condition of 0.07≤(R17+R18)/(R17−R18)≤0.62, whichspecifies a shape of the ninth lens. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera optical lens10 satisfies a condition of 0.12≤(R17+R18)/(R17−R18)≤0.50.

An on-axis thickness of the ninth lens L9 is defined as d17, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical lens 10 satisfies a condition of 0.04≤d17/TTL≤0.12.This condition can achieve ultra-thin lenses. As an example, the cameraoptical lens 10 satisfies a condition of 0.06≤d17/TTL≤0.10.

In this embodiment, an image height of the camera optical lens 10 isdefined as IH, and the total optical length of the camera optical lens10 is defined as TTL. The camera optical lens 10 satisfies a conditionof TTL/IH≤1.42, thereby achieving ultra-thin lenses.

In this embodiment, a field of view (FOV) of the camera optical lens 10is greater than or equal to 82°, thereby achieving a wide angle.

In this embodiment, an F number FNO of the camera optical lens 10 issmaller than or equal to 1.71, thereby achieving a large aperture. Thecamera optical lens thus has good imaging performance.

When the above conditions are satisfied, the camera optical lens 10 canmeet design requirements of a large aperture, a wide angle, andultra-thinness while having good optical performance. According to thecharacteristics of the camera optical lens 10, the camera optical lens10 is particularly applicable to a mobile phone camera lens assembly anda WEB camera lens composed of high pixel CCD, CMOS, and other cameraelements.

Examples of the camera optical lens 10 of the present disclosure aredescribed below. Symbols described in each example will be described asfollows. The focal length, on-axis distance, central curvature radius,on-axis thickness, inflexion point position, and arrest point positionare all in units of mm.

TTL: total optical length (on-axis distance from the object side surfaceof the first lens L1 to the image plane Si) in mm.

F number (FNO): a ratio of an effective focal length of the cameraoptical lens to an entrance pupil diameter of the camera optical lens.

In some embodiments, at least one of the object side surface or theimage side surface of each lens is provided with at least one ofinflection points or arrest points to meet high-quality imagingrequirements. The specific implementations can be referred to thefollowing description.

Table 1 and Table 2 indicate design data of the camera optical lens 10according to the Embodiment 1 of the present disclosure.

TABLE 1 R d nd vd S1 ∞ d0= −0.768 R1 2.947 d1= 0.705 nd1 1.5444 v1 56.43R2 3.934 d2= 0.083 R3 4.289 d3= 0.500 nd2 1.5444 v2 56.43 R4 17.912 d4=0.050 R5 5.591 d5= 0.300 nd3 1.6800 v3 18.40 R6 3.766 d6= 0.764 R733.258 d7= 0.431 nd4 1.5444 v4 56.43 R8 24.367 d8= 0.267 R9 30.413 d9=0.434 nd5 1.5444 v5 56.43 R10 −9.001 d10= 0.134 R11 −5.676 d11= 0.380nd6 1.6032 v6 28.29 R12 −14.610 d12= 0.245 R13 −10.756 d13= 0.400 nd71.6450 v7 22.50 R14 −16.576 d14= 0.161 R15 3.554 d15= 0.671 nd8 1.5444v8 56.43 R16 75.616 d16= 1.466 R17 −9.46 d17= 0.602 nd9 1.5444 v9 56.43R18 3.928 d18= 0.500 R19 ∞ d19= 0.210 ndg 1.5168 vg 64.17 R20 ∞ d20=0.197

In the above table, meanings of the symbols will be described asfollows.

S1: aperture;

R: curvature radius at center of an optical surface;

R1: central curvature radius of the object side surface of the firstlens L1;

R2: central curvature radius of the image side surface of the first lensL1;

R3: central curvature radius of the object side surface of the secondlens L2;

R4: central curvature radius of the image side surface of the secondlens L2;

R5: central curvature radius of the object side surface of the thirdlens L3;

R6: central curvature radius of the image side surface of the third lensL3;

R7: central curvature radius of the object side surface of the fourthlens L4;

R8: central curvature radius of the image side surface of the fourthlens L4;

R9: central curvature radius of the object side surface of the fifthlens L5;

R10: central curvature radius of the image side surface of the fifthlens L5;

R11: central curvature radius of the object side surface of the sixthlens L6;

R12: central curvature radius of the image side surface of the sixthlens L6;

R13: central curvature radius of the object side surface of the seventhlens L7;

R14: central curvature radius of the image side surface of the seventhlens L7;

R15: central curvature radius of the object side surface of the eighthlens L8;

R16: central curvature radius of the image side surface of the eighthlens L8;

R17: central curvature radius of the object side surface of the ninthlens L9;

R18: central curvature radius of the image side surface of the ninthlens L9;

R19: central curvature radius of the object side surface of the opticalfilter GF;

R20: central curvature radius of the image side surface of the opticalfilter GF;

d: on-axis thickness of a lens and an on-axis distance between thelenses;

d0: on-axis distance from the aperture S1 to the object side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image side surface of the first lens L1 tothe object side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image side surface of the second lens L2to the object side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image side surface of the third lens L3 tothe object side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image side surface of the fourth lens L4to the object side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image side surface of the fifth lens L5to the object side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image side surface of the sixth lens L6to the object side surface of the seventh lens L7;

d13: on-axis thickness of the seventh lens L7;

d14: on-axis distance from the image side surface of the seventh lens L7to the object side surface of the eighth lens L8;

d15: on-axis thickness of the eighth lens L8;

d16: on-axis distance from the image side surface of the eighth lens L8to the object side surface of the ninth lens L9;

d17: on-axis thickness of the ninth lens L9;

d18: on-axis distance from the image side surface of the ninth lens L9to the object side surface of the optical filter GF;

d19: on-axis thickness of the optical filter GF;

d20: on-axis distance from the image side surface of the optical filterGF to the image plane Si;

nd: refractive index of d-line;

nd1: refractive index of d-line of the first lens L1;

nd2: refractive index of d-line of the second lens L2;

nd3: refractive index of d-line of the third lens L3;

nd4: refractive index of d-line of the fourth lens L4;

nd5: refractive index of d-line of the fifth lens L5;

nd6: refractive index of d-line of the sixth lens L6;

nd7: refractive index of d-line of the seventh lens L7;

nd8: refractive index of d-line of the eighth lens L8;

nd9: refractive index of d-line of the ninth lens L9;

ndg: refractive index of d-line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

v7: abbe number of the seventh lens L7;

v8: abbe number of the eighth lens L8;

v9: abbe number of the ninth lens L9; and

vg: abbe number of the optical filter GF.

Table 2 indicates aspherical surface data of each lens in the cameraoptical lens 10 according to the Embodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1  6.9367E−02 −5.4272E−04 7.6356E−05  5.6977E−05 −1.4820E−052.7669E−07 R2 −5.0784E+00  4.9337E−04 −4.1119E−03  −5.5928E−04 9.7406E−04 −3.0450E−04  R3 −8.8461E+00  8.2016E−03 −7.2196E−03  7.0205E−04  5.7410E−04 −1.4460E−04  R4 −8.7099E+00 −2.4987E−035.4780E−03 −3.1115E−03  1.0975E−03 −2.2324E−04  R5 −2.3759E+00−2.3279E−02 1.0610E−02 −3.6465E−03  4.5862E−04 6.1710E−05 R6  1.5315E+00−2.3963E−02 6.0585E−03 −1.3628E−03 −9.0296E−05 1.4313E−04 R7 −8.7050E+00−1.5338E−02 3.1345E−03 −3.5240E−03  1.4445E−03 −4.3732E−04  R8−1.0000E+01 −2.8184E−02 1.2574E−02 −1.0287E−02  4.8744E−03 −1.4706E−03 R9  3.9482E+00 −3.1685E−02 −6.8769E−03   1.3287E−02 −1.3867E−027.4362E−03 R10  5.8126E+00  1.6372E−02 −5.0118E−02   2.8930E−02−1.2092E−02 4.0669E−03 R11  1.9849E−01  3.9961E−02 −6.2140E−02  3.5425E−02 −1.0352E−02 1.7172E−03 R12  6.9898E+00 −1.7914E−03−2.8751E−02   2.4648E−02 −1.0764E−02 2.7551E−03 R13  5.6186E+00−1.8193E−04 4.6731E−03 −7.9343E−04 −9.1712E−04 4.3008E−04 R14 9.4799E+00 −1.4263E−02 1.2451E−02 −4.7383E−03  8.2879E−04 −5.9775E−05 R15 −6.6848E−01 −1.1375E−02 −1.1225E−03   5.4091E−04 −8.9144E−056.7462E−06 R16  1.0059E+00  2.4915E−02 −1.1167E−02   2.6972E−03−3.9299E−04 3.5177E−05 R17 −8.8994E+00 −2.9368E−02 2.7074E−03 9.5449E−05 −2.9136E−05 2.1112E−06 R18 −9.2137E−01 −3.1963E−024.8633E−03 −5.8663E−04  5.3500E−05 −3.4729E−06  Conic coefficientAspherical surface coefficient k A14 A16 A18 A20 R1  6.9367E−02 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 R2 −5.0784E+00  5.1209E−05−3.8557E−06  0.0000E+00 0.0000E+00 R3 −8.8461E+00  1.3422E−05 0.0000E+000.0000E+00 0.0000E+00 R4 −8.7099E+00  2.2064E−05 2.0443E−07 0.0000E+000.0000E+00 R5 −2.3759E+00 −1.4109E−05 0.0000E+00 0.0000E+00 0.0000E+00R6  1.5315E+00 −1.5858E−05 0.0000E+00 0.0000E+00 0.0000E+00 R7−8.7050E+00  6.4726E−05 −1.1363E−06  0.0000E+00 0.0000E+00 R8−1.0000E+01  2.2049E−04 −1.1144E−05  0.0000E+00 0.0000E+00 R9 3.9482E+00 −2.1561E−03 3.2115E−04 −1.9055E−05  0.0000E+00 R10 5.8126E+00 −9.0426E−04 1.0922E−04 −5.3229E−06  0.0000E+00 R11 1.9849E−01 −1.4957E−04 3.3667E−06 4.4427E−07 −2.7414E−08  R12 6.9898E+00 −4.2125E−04 3.7833E−05 −1.8437E−06  3.7646E−08 R13 5.6186E+00 −8.3444E−05 8.5869E−06 −4.6116E−07  1.0175E−08 R14 9.4799E+00 −1.2863E−06 5.0707E−07 −3.1264E−08  6.5021E−10 R15−6.6848E−01 −2.1904E−07 2.9523E−10 1.4836E−10 −2.5430E−12  R16 1.0059E+00 −1.9458E−06 6.4774E−08 −1.1875E−09  9.1911E−12 R17−8.8994E+00 −8.1949E−08 1.9006E−09 −2.5512E−11  1.5563E−13 R18−9.2137E−01  1.5009E−07 −4.0706E−09  6.2759E−11 −4.2024E−13 

In Table 2, k is a conic coefficient, and A4, A6, A8, A10, A12, A14,A16, A18, and A20 are aspherical surface coefficients.

y=(x ² /R)/{1+[1−(k+1)(x ² /R ²)]^(1/2) }+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰   (1),

where x is a vertical distance between a point on an aspherical curveand the optic axis, and y is an aspherical depth (a vertical distancebetween a point on an aspherical surface at a distance of x from theoptic axis and a surface tangent to a vertex of the aspherical surfaceon the optic axis).

In the present embodiment, an aspherical surface of each lens surfaceuses the aspherical surface represented by the above formula (1).However, the present disclosure is not limited to the asphericalpolynomial form represented by the formula (1).

Table 3 and Table 4 indicate design data of inflection points and arrestpoints of each lens in the camera optical lens 10 according to theEmbodiment 1 of the present disclosure. P1R1 and P1R2 represent theobject side surface and the image side surface of the first lens L1,respectively. P2R1 and P2R2 represent the object side surface and theimage side surface of the second lens L2, respectively. P3R1 and P3R2represent the object side surface and the image side surface of thethird lens L3, respectively. P4R1 and P4R2 represent the object sidesurface and the image side surface of the fourth lens L4, respectively.P5R1 and P5R2 represent the object side surface and the image sidesurface of the fifth lens L5, respectively. P6R1 and P6R2 represent theobject side surface and the image side surface of the sixth lens L6,respectively. P7R1 and P7R2 represent the object side surface and theimage side surface of the seventh lens L7, respectively. P8R1 and P8R2represent the object side surface and the image side surface of theeighth lens L8, respectively. P9R1 and P9R2 represent the object sidesurface and the image side surface of the ninth lens L9, respectively.Data in the “inflection point position” column refers to verticaldistances from inflection points arranged on each lens surface to theoptic axis of the camera optical lens 10. Data in the “arrest pointposition” column refers to vertical distances from arrest pointsarranged on each lens surface to the optic axis of the camera opticallens 10.

TABLE 3 Number of Inflection Inflection Inflection inflection pointpoint point points position 1 position 2 position 3 P1R1 0 / / / P1R2 21.265 1.435 / P2R1 0 / / / P2R2 0 / / / P3R1 3 1.315 1.475 1.905 P3R2 0/ / / P4R1 2 0.425 1.805 / P4R2 2 0.375 1.935 / P5R1 2 0.295 1.905 /P5R2 1 2.015 / / P6R1 2 1.495 2.275 / P6R2 2 1.885 2.595 / P7R1 2 2.4352.905 / P7R2 2 2.705 3.335 / P8R1 3 1.575 3.645 4.425 P8R2 1 1.965 / /P9R1 2 2.345 4.895 / P9R2 3 0.975 4.965 5.385

TABLE 4 Number of Arrest point arrest points position 1 P1R1 0 / P1R2 0/ P2R1 0 / P2R2 0 / P3R1 0 / P3R2 0 / P4R1 1 0.725 P4R2 1 0.665 P5R1 10.495 P5R2 0 / P6R1 0 / P6R2 0 / P7R1 0 / P7R2 0 / P8R1 1 2.755 P8R2 12.865 P9R1 0 / P9R2 1 2.155

FIG. 2 and FIG. 3 respectively illustrate schematic diagrams oflongitudinal aberration and lateral color of light with wavelengths of656 nm, 588 nm, 546 nm, 486 nm, and 436 nm after passing through thecamera optical lens 10 in the Embodiment 1. FIG. 4 illustrates aschematic diagram of field curvature and distortion of light with awavelength of 546 nm after passing through the camera optical lens 10 inthe Embodiment 1, in which the field curvature S is a field curvature ina sagittal direction, and T is a field curvature in a meridionaldirection.

Table 13 hereinafter indicates various values in Embodiments 1, 2, and 3corresponding to parameters specified in the above conditions.

As shown in Table 13, the Embodiment 1 satisfies each of the aboveconditions.

In the present embodiment, the camera optical lens 10 has an entrancepupil diameter ENPD of 3.961 mm, an image height IH of full field of6.000 mm, and the FOV (field of view) of 82.00° in a diagonal direction,such that the camera optical lens 10 meets design requirements for largeaperture, wide angle and ultra-thinness while sufficiently correctingon-axis and off-axis chromatic aberration, thereby achieving excellentoptical characteristics.

Embodiment 2

The Embodiment 2 is substantially the same as the Embodiment 1. Themeanings of symbols in the Embodiment 2 are the same as those in theEmbodiment 1. FIG. 5 illustrates a camera optical lens 20 according tothe Embodiment 2 of the present disclosure.

Table 5 and Table 6 indicate design data of the camera optical lens 20according to the Embodiment 2 of the present disclosure.

TABLE 5 R d nd vd S1 ∞ d0= −0.768 R1 2.938 d1= 0.690 nd1 1.5444 v1 56.43R2 3.597 d2= 0.072 R3 3.826 d3= 0.527 nd2 1.5444 v2 56.43 R4 15.826 d4=0.050 R5 5.516 d5= 0.300 nd3 1.6800 v3 18.40 R6 3.752 d6= 0.755 R726.023 d7= 0.441 nd4 1.5444 v4 56.43 R8 20.971 d8= 0.257 R9 29.823 d9=0.406 nd5 1.5444 v5 56.43 R10 −8.973 d10= 0.144 R11 −5.378 d11= 0.435nd6 1.6032 v6 28.29 R12 −11.813 d12= 0.108 R13 −10.775 d13= 0.400 nd71.6450 v7 22.50 R14 −20.111 d14= 0.273 R15 3.481 d15= 0.654 nd8 1.5444v8 56.43 R16 71.789 d16= 1.435 R17 −8.396 d17= 0.650 nd9 1.5444 v9 56.43R18 4.034 d18= 0.500 R19 ∞ d19= 0.210 ndg 1.5168 vg 64.17 R20 ∞ d20=0.192

Table 6 indicates aspherical surface data of each lens in the cameraoptical lens 20 according to the Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1  4.5637E−02 −7.2306E−04  1.2164E−04 8.0561E−05 −2.1209E−055.6373E−07 R2 −5.5426E+00  1.3758E−03 −5.8475E−03 6.2512E−04  4.6327E−04−1.6616E−04  R3 −8.8228E+00  1.0060E−02 −9.3618E−03 1.6472E−03 3.2713E−04 −1.0845E−04  R4 −9.6935E+00 −4.3772E−03  6.5447E−03−3.3828E−03   1.1240E−03 −2.2240E−04  R5 −2.1504E+00 −2.3487E−02 1.1081E−02 −3.6954E−03   3.9633E−04 8.0179E−05 R6  1.5685E+00−2.2683E−02  5.4546E−03 −1.0142E−03  −2.7017E−04 1.8773E−04 R7−7.8290E+00 −1.6196E−02  4.6829E−03 −5.2618E−03   2.5032E−03−7.9999E−04  R8 −7.6834E+00 −3.0446E−02  1.5669E−02 −1.3454E−02  6.5101E−03 −1.9409E−03  R9 −5.3955E−01 −3.1904E−02 −3.9208E−031.1528E−02 −1.4159E−02 7.9842E−03 R10  3.1739E+00  1.2991E−02−4.5249E−02 2.8460E−02 −1.4171E−02 5.3884E−03 R11  9.6711E−02 3.3562E−02 −6.0966E−02 3.8267E−02 −1.2817E−02 2.6859E−03 R12 7.0290E+00  2.9551E−03 −3.9419E−02 3.2574E−02 −1.3834E−02 3.4402E−03R13  7.0182E+00  7.6276E−03 −2.5474E−03 3.0251E−03 −2.6625E−031.0220E−03 R14  4.1506E+00 −1.4579E−02  1.5783E−02 −8.3784E−03  2.3513E−03 −3.9615E−04  R15 −6.6756E−01 −1.2992E−02 −1.5754E−042.2145E−04 −3.1795E−05 4.7796E−07 R16 −1.0000E+01  2.2709E−02−9.7015E−03 2.3181E−03 −3.4055E−04 3.0774E−05 R17 −6.3812E+00−2.8529E−02  2.9452E−03 6.4639E−05 −3.0758E−05 2.6040E−06 R18−8.6692E−01 −3.1637E−02  4.8856E−03 −5.8242E−04   5.1464E−05−3.2303E−06  Conic coefficient Aspherical surface coefficient k A14 A16A18 A20 R1  4.5637E−02  0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 R2−5.5426E+00  3.0563E−05 −2.5558E−06  0.0000E+00 0.0000E+00 R3−8.8228E+00  1.1386E−05 0.0000E+00 0.0000E+00 0.0000E+00 R4 −9.6935E+00 2.0976E−05 4.5999E−07 0.0000E+00 0.0000E+00 R5 −2.1504E+00 −1.5525E−050.0000E+00 0.0000E+00 0.0000E+00 R6  1.5685E+00 −2.0143E−05 0.0000E+000.0000E+00 0.0000E+00 R7 −7.8290E+00  1.2933E−04 −5.6970E−06  0.0000E+000.0000E+00 R8 −7.6834E+00  2.9166E−04 −1.5428E−05  0.0000E+00 0.0000E+00R9 −5.3955E−01 −2.3526E−03 3.5265E−04 −2.1027E−05  0.0000E+00 R10 3.1739E+00 −1.2547E−03 1.5356E−04 −7.5242E−06  0.0000E+00 R11 9.6711E−02 −3.6454E−04  3.1161E−O5 −1.5218E−06  3.1783E−08 R12 7.0290E+00 −5.1114E−04 4.4557E−05 −2.0997E−06  4.1130E−08 R13 7.0182E+00 −2.1044E−04 2.4547E−05 −1.5284E−06  3.9383E−08 R14 4.1506E+00  4.1758E−05 −2.6996E−06  9.7876E−08 −1.5237E−09  R15−6.6756E−01  2.0915E−07 −1.7438E−08  5.5423E−10 −6.4792E−12  R16−1.0000E+01 −1.7121E−06 5.7042E−08 −1.0408E−09  7.9646E−12 R17−6.3812E+00 −1.1897E−07 3.2723E−09 −5.1468E−11  3.5674E−13 R18−8.6692E−01  1.3583E−07 −3.6123E−09  5.5020E−11 −3.6615E−13 

Table 7 and Table 8 indicate design data of inflection points and arrestpoints of each lens in the camera optical lens 20 according to theEmbodiment 2 of the present disclosure.

TABLE 7 Number of Inflection Inflection Inflection inflection pointpoint point points position 1 position 2 position 3 P1R1 0 / / / P1R2 21.205 1.485 / P2R1 0 / / / P2R2 0 / / / P3R1 1 1.915 / / P3R2 0 / / /P4R1 2 0.475 1.795 / P4R2 2 0.395 1.925 / P5R1 2 0.295 1.895 / P5R2 11.975 / / P6R1 2 1.495 2.295 / P6R2 2 1.895 2.585 / P7R1 2 2.375 2.715 /P7R2 2 2.595 3.305 / P8R1 3 1.565 3.595 4.415 P8R2 3 1.975 4.275 4.575P9R1 2 2.315 4.845 / P9R2 3 0.975 4.975 5.415

TABLE 8 Number of Arrest point arrest points position 1 P1R1 0 / P1R2 0/ P2R1 0 / P2R2 0 / P3R1 0 / P3R2 0 / P4R1 1 0.805 P4R2 1 0.705 P5R1 10.505 P5R2 0 / P6R1 0 / P6R2 0 / P7R1 0 / P7R2 0 / P8R1 1 2.725 P8R2 12.825 P9R1 0 / P9R2 1 2.195

FIG. 6 and FIG. 7 respectively illustrate schematic diagrams of alongitudinal aberration and a lateral color of light with wavelengths of656 nm, 588 nm, 546 nm, 486 nm, and 436 nm after passing through thecamera optical lens 20 in the Embodiment 2. FIG. 8 illustrates aschematic diagram of field curvature and distortion of light with awavelength of 546 nm after passing through the camera optical lens 20 inthe Embodiment 2.

As shown in Table 13, the Embodiment 2 satisfies the above conditions.

In this embodiment, the camera optical lens 20 has an entrance pupildiameter ENPD of 3.961 mm, an image height IH of full field of 6.000 mm,and the FOV (field of view) of 82.00° in a diagonal direction, such thatthe camera optical lens 20 meets design requirements for large aperture,wide angle and ultra-thinness while sufficiently correcting on-axis andoff-axis chromatic aberration, thereby achieving excellent opticalcharacteristics.

Embodiment 3

The Embodiment 3 is substantially the same as the Embodiment 1. Themeanings of symbols in the Embodiment 3 are the same as those in theEmbodiment 1. Differences therebetween will be described below.

FIG. 9 illustrates a camera optical lens 30 according to the Embodiment3 of the present disclosure. In this embodiment, the fourth lens L4 hasa positive refractive power.

Table 9 and Table 10 indicate design data of the camera optical lens 30according to the Embodiment 3 of the present disclosure.

TABLE 9 R d nd vd S1 ∞ d0= −0.768 R1 2.972 d1= 0.743 nd1 1.5444 v1 56.43R2 4.848 d2= 0.072 R3 5.348 d3= 0.450 nd2 1.5444 v2 56.43 R4 10.804 d4=0.050 R5 4.675 d5= 0.300 nd3 1.6800 v3 18.40 R6 3.696 d6= 0.750 R717.759 d7= 0.461 nd4 1.5444 v4 56.43 R8 17.688 d8= 0.253 R9 68.543 d9=0.436 nd5 1.5444 v5 56.43 R10 −7.407 d10= 0.141 R11 −5.181 d11= 0.436nd6 1.6032 v6 28.29 R12 −10.055 d12= 0.055 R13 −10.153 d13= 0.400 nd71.6450 v7 22.50 R14 −25.974 d14= 0.349 R15 3.417 d15= 0.660 nd8 1.5444v8 56.43 R16 99.207 d16= 1.385 R17 −6.052 d17= 0.682 nd9 1.5444 v9 56.43R18 4.528 d18= 0.500 R19 ∞ d19= 0.210 ndg 1.5168 vg 64.17 R20 ∞ d20=0.166

Table 10 indicates aspherical surface data of each lens in the cameraoptical lens 30 according to the Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1 7.6366E−02  1.0317E−04 1.2948E−06 8.5477E−05 −2.8709E−052.6586E−06 R2 −4.3071E+00  −1.1619E−03 −5.5231E−03  1.8353E−03−2.2886E−05 −1.0233E−04  R3 −7.2577E+00   4.9183E−03 −8.1902E−03 3.6446E−03 −6.8621E−04 7.9604E−05 R4 −1.0000E+01  −1.3922E−02 1.3718E−02−6.7284E−03   2.2411E−03 −5.3917E−04  R5 −3.4105E+00  −3.2310E−021.5717E−02 −5.2816E−03   6.4403E−04 9.5744E−05 R6 1.5485E+00 −2.4525E−024.4148E−03 1.3034E−04 −7.1880E−04 2.7854E−04 R7 5.9483E+00 −1.4382E−023.6462E−03 −4.4171E−03   1.7957E−03 −4.5649E−04  R8 2.8697E+00−2.8859E−02 1.6204E−02 −1.5158E−02   7.4477E−03 −2.2304E−03  R91.0000E+01 −3.2424E−02 5.1865E−04 6.2322E−03 −1.1423E−02 7.0978E−03 R101.2928E+00  8.3290E−03 −3.9865E−02  2.7617E−02 −1.5333E−02 6.0895E−03R11 3.8207E−01  2.1470E−02 −5.3155E−02  3.7752E−02 −1.3990E−023.1352E−03 R12 8.5800E+00  6.8238E−03 −5.1799E−02  4.5132E−02−2.0416E−02 5.3857E−03 R13 9.3798E+00  2.0091E−02 −2.1176E−02 1.7610E−02 −9.6771E−03 3.0798E−03 R14 8.2317E+00 −1.5244E−02 1.4837E−02−7.8500E−03   2.1575E−03 −3.5519E−04  R15 −6.7490E−01  −1.9178E−022.6709E−03 −4.6925E−04   7.5804E−05 −1.1878E−05  R16 1.0000E+01 1.7974E−02 −7.4942E−03  1.9663E−03 −3.2572E−04 3.2529E−05 R17−8.9730E+00  −3.1291E−02 5.6311E−03 −6.4979E−04   6.4945E−05−4.9725E−06  R18 −7.0930E−01  −3.1537E−02 5.8865E−03 −8.4544E−04  8.6532E−05 −6.1130E−06  Conic coefficient Aspherical surfacecoefficient k A14 A16 A18 A20 R1 7.6366E−02  0.0000E+00 0.0000E+000.0000E+00 0.0000E+00 R2 −4.3071E+00   2.9504E−05 −2.8451E−06 0.0000E+00 0.0000E+00 R3 −7.2577E+00  −2.0511E−06 0.0000E+00 0.0000E+000.0000E+00 R4 −1.0000E+01   8.4578E−05 −5.2879E−06  0.0000E+000.0000E+00 R5 −3.4105E+00  −2.1177E−05 0.0000E+00 0.0000E+00 0.0000E+00R6 1.5485E+00 −2.7285E−05 0.0000E+00 0.0000E+00 0.0000E+00 R7 5.9483E+00 3.3238E−05 4.6780E−06 0.0000E+00 0.0000E+00 R8 2.8697E+00  3.3720E−04−1.8085E−05  0.0000E+00 0.0000E+00 R9 1.0000E+01 −2.1474E−03 3.2382E−04−1.9321E−05  0.0000E+00 R10 1.2928E+00 −1.4220E−03 1.7227E−04−8.3326E−06  0.0000E+00 R11 3.8207E−01 −4.2465E−04 3.2110E−05−1.0716E−06  2.8996E−09 R12 8.5800E+00 −8.4591E−04 7.7752E−05−3.8508E−06  7.8803E−08 R13 9.3798E+00 −5.8071E−04 6.4743E−05−3.9542E−06  1.0191E−07 R14 8.2317E+00  3.7053E−05 −2.4095E−06 8.9114E−08 −1.4311E−09  R15 −6.7490E−01   1.1950E−06 −6.6070E−08 1.8599E−09 −2.1011E−11  R16 1.0000E+01 −1.9607E−06 6.9843E−08−1.3511E−09  1.0904E−11 R17 −8.9730E+00   2.5158E−07 −7.7447E−09 1.3131E−10 −9.4284E−13  R18 −7.0930E−01   2.8555E−07 −8.3741E−09 1.3936E−10 −1.0013E−12 

Table 11 and Table 12 indicate design data of inflection points andarrest points of each lens in the camera optical lens 30 according tothe Embodiment 3 of the present disclosure.

TABLE 11 Number of Inflection Inflection Inflection inflection pointpoint point points position 1 position 2 position 3 P1R1 0 / / / P1R2 0/ / / P2R1 0 / / / P2R2 0 / / / P3R1 3 1.205 1.475 1.905 P3R2 0 / / /P4R1 2 0.605 1.825 / P4R2 2 0.455 1.925 / P5R1 2 0.195 1.865 / P5R2 11.985 / / P6R1 2 1.545 2.315 / P6R2 2 1.885 2.495 / P7R1 2 2.295 2.565 /P7R2 2 2.405 3.175 / P8R1 3 1.585 3.485 4.255 P8R2 3 2.015 4.255 4.375P9R1 2 2.345 4.785 / P9R2 3 0.945 4.915 5.335

TABLE 12 Number of Arrest point arrest points position 1 P1R1 0 / P1R2 0/ P2R1 0 / P2R2 0 / P3R1 0 / P3R2 0 / P4R1 1 0.995 P4R2 1 0.805 P5R1 10.335 P5R2 0 / P6R1 0 / P6R2 0 / P7R1 0 / P7R2 0 / P8R1 1 2.595 P8R2 12.685 P9R1 0 / P9R2 1 2.245

FIG. 10 and FIG. 11 respectively illustrate schematic diagrams of alongitudinal aberration and a lateral color of light with wavelengths of656 nm, 588 nm, 546 nm, 486 nm, and 436 nm after passing through thecamera optical lens 30 in the Embodiment 3. FIG. 12 illustrates aschematic diagram of field curvature and distortion of light with awavelength of 546 nm after passing through the camera optical lens 30 inthe Embodiment 3, in which the field curvature S is a field curvature ina sagittal direction, and T is a field curvature in a meridionaldirection.

Table 13 below includes values corresponding to the above conditions inthis embodiment according to the above conditions. It is apparent thatthe camera optical lens 30 in this embodiment satisfies the aboveconditions.

In this embodiment, the camera optical lens 30 has an entrance pupildiameter ENPD of 3.961 mm, an image height IH of full field of 6.000 mm,and the FOV (field of view) of 82.00° in a diagonal direction, such thatthe camera optical lens 30 meets design requirements for large aperture,wide angle and ultra-thinness while sufficiently correcting on-axis andoff-axis chromatic aberration, thereby achieving excellent opticalcharacteristics.

TABLE 13 Parameters and Conditions Embodiment 1 Embodiment 2 Embodiment3 f1/f 2.55 3.18 1.83 d11/d12 1.55 4.03 7.93 f 6.734 6.734 6.734 f117.155 21.414 12.323 f2 10.184 9.088 18.821 f3 −17.962 −18.309 −29.283f4 −169.642 −203.870 6212.630 f5 12.754 12.664 12.253 f6 −15.512 −16.661−18.187 f7 −48.319 −36.225 −25.834 f8 6.800 6.670 6.457 f9 −4.997 −4.894−4.632 FNO 2.42 2.42 2.42 TTL 8.500 8.499 8.499 IH 6.000 6.000 6.000 FOV82.00° 82.00° 82.00°

The above are only the embodiments of the present disclosure. It shouldbe understood that those skilled in the art can make improvementswithout departing from the inventive concept of the present disclosure,and these improvements shall all belong to the scope of the presentdisclosure.

What is claimed is:
 1. A camera optical lens, comprising, from an objectside to an image side: a first lens; a second lens having a positiverefractive power; a third lens; a fourth lens; a fifth lens; a sixthlens; a seventh lens; an eighth lens; and a ninth lens, wherein thecamera optical lens satisfies following conditions:1.80≤f1/f≤3.20; and1.50≤d11/d12≤8.00, where f denotes a focal length of the camera opticallens, f1 denotes a focal length of the first lens, d11 denotes anon-axis thickness of the sixth lens, and d12 denotes an on-axis distancefrom an image side surface of the sixth lens to an object side surfaceof the seventh lens.
 2. The camera optical lens as described in claim 1,further satisfying a following condition:−2.50≤R15/R16≤−1.00, where R15 denotes a central curvature radius of anobject side surface of the eighth lens, and R16 denotes a centralcurvature radius of an image side surface of the eighth lens.
 3. Thecamera optical lens as described in claim 1, further satisfyingfollowing conditions:−19.83≤(R1+R2)/(R1−R2)≤−2.78; and0.04≤d1/TTL≤0.13, where R1 denotes a central curvature radius of anobject side surface of the first lens, R2 denotes a central curvatureradius of an image side surface of the first lens, d1 denotes an on-axisthickness of the first lens, and TTL denotes a total optical length fromthe object side surface of the first lens to an image plane of thecamera optical lens along an optic axis.
 4. The camera optical lens asdescribed in claim 1, further satisfying following conditions:0.67≤f2/f≤4.19;−5.92≤(R3+R4)/(R3−R4)≤−1.09; and0.03≤d3/TTL≤0.09, where f2 denotes a focal length of the second lens, R3denotes a central curvature radius of an object side surface of thesecond lens, R4 denotes a central curvature radius of an image sidesurface of the second lens, d3 denotes an on-axis thickness of thesecond lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 5. The camera optical lens as described in claim 1,further satisfying following conditions:−8.70≤f3/f≤−1.78;2.56≤(R5+R6)/(R5−R6)≤12.83; and0.02≤d5/TTL≤0.05, where f3 denotes a focal length of the third lens, R5denotes a central curvature radius of an object side surface of thethird lens, R6 denotes a central curvature radius of an image sidesurface of the third lens, d5 denotes an on-axis thickness of the thirdlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 6. The camera optical lens as described in claim 1, furthersatisfying following conditions:−60.55≤f4/f≤1383.86;3.24≤(R7+R8)/(R7−R8)≤748.88; and0.03≤d7/TTL≤0.08, where f4 denotes a focal length of the fourth lens, R7denotes a central curvature radius of an object side surface of thefourth lens, R8 denotes a central curvature radius of an image sidesurface of the fourth lens, d7 denotes an on-axis thickness of thefourth lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 7. The camera optical lens as described in claim 1,further satisfying following conditions:0.91≤f5/f≤2. 84;0.27≤(R9+R10)/(R9−R10)≤1.21; and0.02≤d9/TTL≤0.08, where f5 denotes a focal length of the fifth lens, R9denotes a central curvature radius of an object side surface of thefifth lens, R10 denotes a central curvature radius of an image sidesurface of the fifth lens, d9 denotes an on-axis thickness of the fifthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 8. The camera optical lens as described in claim 1, furthersatisfying following conditions:−5.40≤f6/f≤−1.54;−6.25≤(R11+R12)/(R11−R12)≤−1.51; and0.02≤d11/TTL≤0.08, where f6 denotes a focal length of the sixth lens,R11 denotes a central curvature radius of an object side surface of thesixth lens, R12 denotes a central curvature radius of the image sidesurface of the sixth lens, and TTL denotes a total optical length froman object side surface of the first lens to an image plane of the cameraoptical lens along an optic axis.
 9. The camera optical lens asdescribed in claim 1, further satisfying following conditions:−14.35≤f7/f≤−2.56;−9.39≤(R13+R14)/(R13−R14)≤−1.52; and0.02≤d13/TTL≤0.07, where f7 denotes a focal length of the seventh lens,R13 denotes a central curvature radius of the object side surface of theseventh lens, R14 denotes a central curvature radius of an image sidesurface of the seventh lens, d13 denotes an on-axis thickness of theseventh lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 10. The camera optical lens as described in claim1, further satisfying following conditions:0.48≤f8/f≤1.51;−2.20≤(R15+R16)/(R15−R16)≤−0.71; and0.04≤d15/TTL≤0.12, where f8 denotes a focal length of the eighth lens,R15 denotes a central curvature radius of an object side surface of theeighth lens, R16 denotes a central curvature radius of an image sidesurface of the eighth lens, d15 denotes an on-axis thickness of theeighth lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 11. The camera optical lens as described in claim1, further satisfying following conditions:−1.48≤f9/f≤−0.46;0.07≤(R17+R18)/(R17−R18)≤0.62; and0.04≤d17/TTL≤0.12, where f9 denotes a focal length of the ninth lens,R17 denotes a central curvature radius of an object side surface of theninth lens, R18 denotes a central curvature radius of an image sidesurface of the ninth lens, d17 denotes an on-axis thickness of the ninthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.